Home / 12,449.55-17,156.73-8,906.61

Finding the Fourth Proportional to 12,449.55, 17,156.73 and 8,906.61

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Solution

The fourth proportional to 12,449.55, 17,156.73 and 8,906.61 is: 12,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.55 : 17,156.73 = 8,906.61 : x
  2. Step 2: Convert to fraction form
    12,449.55/17,156.73 = 8,906.61/x
  3. Step 3: Cross multiply
    12,449.55x = 17,156.73 × 8,906.61
  4. Step 4: Simplify right side
    12,449.55x = 152,808,302.99
  5. Step 5: Solve for x
    x = 152,808,302.99/12,449.55
  6. Step 6: Final answer
    x = 12,274.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.